Key result
A protocol for genotyping CYP2C9 (rs1057910) and VKORC1 (rs9923231, rs9934438) using PCR-RFLP and Sanger sequencing was successfully established for patients treated with acenocoumarol.
Why the study?
Genetic polymorphisms of CYP2C9 and VKORC1 strongly impact acenocoumarol response, prompting the establishment of a genotyping method in Vietnamese cardiac valve replacement patients.
Cross-Sectional (n=150)
No
The established PCR-RFLP genotyping protocol provides a feasible and cost-effective method for identifying CYP2C9 and VKORC1 variants to potentially guide acenocoumarol dosing in Vietnamese hospitals.
Offers a practical genotyping tool for resource-limited settings; leaves open its impact on acenocoumarol dosing outcomes.
Acenocoumarol is widely prescribed for patients with risk of thromboembolism in Vietnam. A lot of study revealed that genetic polymorphisms of CYP2C9 and VKORC1 genes are the strongest genetic factors that have a high-impact upon the response of acenocoumarol. Therefore, in this study, we established the genotyping method of CYP2C9 and VKORC1 on Vietnamese cardiac valve replacement patients treated with acenocoumarol. Main method included DNA extraction from peripheral blood samples, polymerase chain reaction (PCR) for amplification of target genes, identifying the genotype by Sanger sequencing and restriction fragment length polymorphism PCR (PCR-RFLP). The results showed that we successfully established the optimal condition to amplify targeted polymorphism as rs1057910 of CYP2C9 gene and rs9923231, rs9934438 of VKORC1 gene.
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Do Thi Le Hang (2018) conducted a cross-sectional in Cardiac valve replacement (n=150). Genotyping of CYP2C9 and VKORC1 SNPs was evaluated on Establishment of optimal PCR and RFLP conditions for genotyping rs1057910, rs9923231, and rs9934438. A protocol for genotyping CYP2C9 (rs1057910) and VKORC1 (rs9923231, rs9934438) using PCR-RFLP and Sanger sequencing was successfully established for patients treated with acenocoumarol.
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